3.1.1 Bilge systems are to be capable of operating satisfactorily under the
conditions as shown in Table 1.1.2 in Chapter 1.
3.1.2 Provision is to be made for detection and drainage of leakage within main
bracings that are sealed against the ingress of sea-water when submerged in
operating conditions.
3.1.3 For the members mentioned in Pt 5, Ch 13, 3.1 General 3.1.2 and other regions of the unit, where numerous
small compartments are provided, arrangements are to be made for venting, draining
and sounding, except where flooding of one or more compartments will not materially
affect the stability criteria. Nevertheless, provision is to be made for the
detection of leakage in each compartment. In all cases, fault condition alarms are
to be provided at the central control station.